   Chapter 10.2, Problem 19E ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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# Perpendicular lines l 1 and l 2 have slopes m 1 and m 2 , respectively. Find m 2 if m 1 equals: a) - 1 2 b) 3 4 c) 3 d) f + g h + j

To determine

(a)

To find:

The slope m2 of the line l2, if slope m1 of the line l1 is -12.

Explanation

By theorem,

If two lines are perpendicular, then the product of their slopes is -1 or one slope is negative reciprocal of the other slope.

(i.e) If l1l2, then m1.m2=-1 or m2=-1m1

To determine

(b)

To find:

The slope m2 of the line l2, if slope m1 of the line l1 is 34.

To determine

(c)

To find:

The slope m2 of the line l2, if slope m1 of the line l1 is 3.

To determine

(d)

To find:

The slope m2 of the line l2, if slope m1 of the line l1 is f+gh+j.

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